Google Link Popularity and passing Page Rank across Links

Resources for Search Engine Optimization, Web Marketing, or just everyday work from Sante – September 1st:

How to Check if a Site Passes Link Popularity – A WebmasterWorld thread asks if there is a way to tell if a particular site or page is able to pass PageRank. In more global terms, is there a way to check if a particular site or page is able to pass link popularity ?